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CiSRA Puzzle Competition 2009

This is the archive of the 2009 Puzzle Competition. Please visit the current competition site for information about the latest Puzzle Competition.

Welcome to the 2009 CiSRA Puzzle Competition web site. The puzzles here have an unusual twist: no instructions are provided, and each puzzle works differently. New puzzlers may wish to consult our puzzle solving guide and warm up with puzzles from previous years before registering for our annual competition. Entry is free. Australian students can win prizes (terms and conditions apply).

CiSRA is Canon Information Systems Research Australia, a leading research and development centre for Canon.


4 May 2009
The 2009 competition is now over! Congratulations to the following teams:

Competition winners      Prize winners        
1    Tweleve Pack1    bbq
2    Puzzletome dot com    2    Fo' Quizzle
3    Killer Chicken Bones3    phwoar

(See the team stats page
for the final scores and
rankings of all teams.)

We hope you had as much fun solving the puzzles as we did creating them.

Worked solutions for each puzzle can be found on the puzzle page, and the full answer log is also available. Credits for the 2009 Competition.

More news. RSS news feed.

2009 Competition Dates

  • Fri 27 March - Site open for team registration. Group 1 puzzles released.
  • Mon 27 April - Puzzle Week begins. Group 2 puzzles released.
  • Tue 28 April - Group 3 puzzles released. Hints released for Groups 1 and 2.
  • Wed 29 April - Group 4 puzzles released. Hints released for Groups 1, 2, 3.
  • Thu 30 April - Group 5 puzzles released. Hints released for Groups 1, 2, 3, 4.
  • Fri 1 May - Hints released for Groups 3, 4, 5.
  • Sat 2 May - Hints released for Groups 4, 5.
  • Sun 3 May - Hints released for Group 5.
  • Mon 4 May - Competition closes. Puzzle solutions released. Provisional prize winners contacted to verify eligibility.

All puzzle and hint releases are at 12:00 noon Australian Eastern Standard Time (2:00 am GMT).


Administrative and technical inquiries to the CiSRA Puzzlers: